/* ============================================================
   CHRISTOPHER IRELAND CREATIVE — editorial monograph portfolio
   All values sourced from DESIGN.md. No color, weight 400 only,
   hairline rules, sharp corners, photography meets the canvas.
   ============================================================ */

/* Smooth crossfade when navigating between pages (supported browsers;
   others simply load instantly). */
@view-transition { navigation: auto; }

:root {
  /* Colors */
  --color-bone: #f2f1ec;
  --color-ink: #000000;
  --color-graphite: #333332;
  --color-ash: #5d5b5b;

  /* Font families */
  --font-playfair: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-rubik: 'Rubik', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Type scale */
  --text-body: 16px;
  --leading-body: 1.5;
  --text-heading: 63px;
  --leading-heading: 1.2;
  --tracking-heading: 0.63px;
  --text-display: 94px;
  --leading-display: 1;
  --tracking-display: 0.94px;

  /* Spacing */
  --spacing-11: 11px;
  --spacing-14: 14px;
  --spacing-30: 30px;
  --spacing-48: 48px;

  /* Layout */
  --page-max-width: 1200px;
  --section-gap: 48px;
}

/* Dark mode — an achromatic inversion of the bone palette.
   Only the color tokens change; the whole site re-themes because
   every rule references these variables. Stays warm + colorless
   to keep the editorial-monograph feel. */
[data-theme="dark"] {
  --color-bone: #16150f;     /* warm near-black canvas */
  --color-ink: #f2f1ec;      /* primary text, rules, "+" — now light */
  --color-graphite: #e8e6df; /* headings */
  --color-ash: #a3a097;      /* secondary / muted text */
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding-top: 52px; /* clears the fixed .site-nav */
  background: var(--color-bone);
  color: var(--color-ash);
  font-family: var(--font-rubik);
  font-weight: 400;
  font-size: var(--text-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.3s ease, color 0.3s ease;
}

img { display: block; max-width: 100%; height: auto; }

a { color: inherit; }

/* Every corner in the system is sharp */
img, .card, button, input, textarea { border-radius: 0; }

/* ---------- Layout container ---------- */
.wrap {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-30);
}

/* ---------- Sticky site nav (injected by js/nav.js) ---------- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 80;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-30);
  background: var(--color-bone);
  border-bottom: 1px solid var(--color-ink);
  font-family: var(--font-rubik);
  font-weight: 500;
  font-size: 14px;
}

.site-nav__brand {
  font-family: var(--font-playfair);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-graphite);
  text-decoration: none;
  white-space: nowrap;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-30);
}

.site-nav__links a { color: var(--color-ink); text-decoration: none; white-space: nowrap; }
.site-nav__links a:hover,
.site-nav__links a[aria-current="page"] { text-decoration: underline; }

/* Projects dropdown */
.site-nav__dropdown {
  position: relative;
  display: flex;
  align-items: center;
  height: 52px;
}

.site-nav__projects {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  font-weight: 500;
  color: var(--color-ink);
  cursor: pointer;
}
.site-nav__projects:hover,
.site-nav__projects[aria-current="page"] { text-decoration: underline; }

.site-nav__caret { font-size: 10px; transition: transform 0.2s ease; }
.site-nav__dropdown.is-open .site-nav__caret { transform: rotate(180deg); }

.site-nav__panel {
  position: absolute;
  top: 100%;
  left: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-14);
  min-width: 220px;
  padding: 0 var(--spacing-30);
  background: var(--color-bone);
  border: 1px solid transparent;
  /* animated reveal */
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
  transition: max-height 0.3s ease, opacity 0.25s ease,
              padding 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
  transform: translateY(-6px);
}
.site-nav__dropdown.is-open .site-nav__panel {
  max-height: 360px;
  opacity: 1;
  padding: var(--spacing-14) var(--spacing-30);
  border-color: var(--color-ink);
  pointer-events: auto;
  transform: translateY(0);
}

.site-nav__panel a { color: var(--color-ink); text-decoration: none; white-space: nowrap; }
.site-nav__panel a:hover,
.site-nav__panel a[aria-current="page"] { text-decoration: underline; }

.site-nav__menu { display: none; } /* hamburger — mobile only */

/* ---------- Homepage hero slideshow ---------- */
.hero { margin-bottom: var(--spacing-48); }

.hero__viewport {
  width: 100%;
  aspect-ratio: 16 / 9;   /* horizontal on desktop */
  max-height: 72vh;       /* keep the hero from dominating the screen */
  overflow: hidden;
}

.hero__track {
  display: flex;
  height: 100%;
  transition: transform 0.7s ease;
  will-change: transform;
}

.hero__slide { flex: 0 0 100%; height: 100%; }
.hero__slide picture { display: block; width: 100%; height: 100%; }

.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(8%);
  display: block;
}

.hero__dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-11);
  margin-top: var(--spacing-14);
}

.hero__dot {
  width: 9px;
  height: 9px;
  padding: 0;
  background: none;
  border: 1px solid var(--color-ink);
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.hero__dot.is-active { background: var(--color-ink); }

.hero__caption { text-align: center; }

.hero__title {
  font-family: var(--font-playfair);
  font-weight: 600;
  font-size: var(--text-display);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
  color: var(--color-graphite);
  margin: var(--spacing-30) 0 0;
}

.hero__role {
  font-family: var(--font-rubik);
  font-weight: 500;
  font-size: var(--text-body);
  letter-spacing: 1px;
  color: var(--color-ash);
  margin: var(--spacing-11) 0 0;
}

/* Lead image at the top of a category gallery */
.category-hero {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: grayscale(8%);
  display: block;
  margin-bottom: var(--spacing-48);
  animation: fade-rise 0.7s ease both;
}

/* Gentle entrance for interior-page headings on load */
.page-title { animation: fade-rise 0.6s ease both; }
.page-intro { animation: fade-rise 0.6s ease 0.08s both; }

@keyframes fade-rise {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

/* Top breathing room under the fixed nav for interior pages */
main[data-render],
.page { padding-top: var(--spacing-30); }

/* ---------- Masthead ---------- */
.masthead {
  padding-top: 64px;
  text-align: center;
}

.masthead__name {
  font-family: var(--font-playfair);
  font-weight: 600;
  color: var(--color-graphite);
  font-size: var(--text-display);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
  margin: 0;
}

.masthead__role {
  font-family: var(--font-rubik);
  font-weight: 500;
  font-size: var(--text-body);
  color: var(--color-ash);
  letter-spacing: 1px;
  margin: var(--spacing-14) 0 0;
  text-align: right;
}

/* ---------- Hairline rule ---------- */
.rule {
  border: 0;
  border-top: 1px solid var(--color-ink);
  width: 100%;
  margin: var(--spacing-48) 0;
}

/* ---------- Sub-nav row ---------- */
.subnav {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--spacing-30);
  padding: var(--spacing-30) 0;
  font-size: var(--text-body);
  font-weight: 500;
  color: var(--color-ink);
  flex-wrap: wrap;
}

.subnav__services { color: var(--color-ink); }

.subnav__links { display: flex; gap: var(--spacing-30); }

.subnav__links a { text-decoration: none; }
.subnav__links a:hover,
.subnav__links a[aria-current="page"] { text-decoration: underline; }

/* ---------- Category list (home — magazine TOC) ---------- */
.categories { padding-bottom: var(--spacing-48); }

.category {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--spacing-48);
  align-items: center;
  text-decoration: none;
  padding: var(--spacing-14) 0;
}

.category + .category { margin-top: var(--spacing-48); }

.category__label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--spacing-14);
}

.category__title {
  font-family: var(--font-playfair);
  font-weight: 600;
  font-size: var(--text-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-graphite);
  margin: 0;
}

.category__plus {
  font-family: var(--font-rubik);
  font-weight: 400;
  font-size: var(--text-body);
  color: var(--color-ink);
  transition: transform 0.2s ease;
}

.category:hover .category__plus { transform: rotate(45deg); }

.category__meta {
  display: block;
  margin-top: var(--spacing-11);
  font-weight: 500;
  color: var(--color-ash);
}

.category__image {
  aspect-ratio: 4 / 3;
  width: 100%;
  object-fit: cover;
  filter: grayscale(8%);
  transition: opacity 0.3s ease;
}

.category:hover .category__image { opacity: 0.92; }

/* Alternate text-left / image-right rhythm for asymmetry */
.category:nth-child(even) .category__label { order: 2; }
.category:nth-child(even) .category__image { order: 1; }

/* ---------- Page heading (gallery / about) ---------- */
.page-title {
  font-family: var(--font-playfair);
  font-weight: 600;
  font-size: var(--text-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-graphite);
  margin: 0 0 var(--spacing-14);
  text-transform: uppercase;
}

.page-intro {
  max-width: 56ch;
  font-weight: 500;
  color: var(--color-ash);
  margin: 0 0 var(--spacing-48);
}

/* Short project description under the title (project pages). */
.project-desc {
  max-width: 56ch;
  font-weight: 500;
  color: var(--color-ash);
  margin: calc(-1 * var(--spacing-11)) 0 var(--spacing-48);
}

.project-desc a {
  color: var(--color-graphite);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.project-desc a:hover { color: var(--color-bone, #f2f1ec); }

/* ---------- Breadcrumb back-link (project pages) ---------- */
.backlink {
  display: inline-block;
  font-weight: 500;
  font-size: var(--text-body);
  color: var(--color-ash);
  text-decoration: none;
  margin-bottom: var(--spacing-14);
  transition: color 0.2s ease;
}

.backlink:hover { color: var(--color-graphite); }

/* ---------- Gallery grid ---------- */
.gallery {
  columns: 3;
  column-gap: var(--spacing-30);
  padding-bottom: var(--spacing-48);
}

.gallery__item {
  break-inside: avoid;
  margin-bottom: var(--spacing-30);
  display: block;
  cursor: zoom-in;
  background: none;
  border: 0;
  padding: 0;
  width: 100%;
  /* photos rise + fade in on load (js sets a per-item stagger delay) */
  animation: fade-rise 0.6s ease both;
}

.gallery__item img {
  width: 100%;
  filter: grayscale(8%);
  transition: filter 0.3s ease, opacity 0.3s ease;
}

.gallery__item:hover img { filter: grayscale(0%); opacity: 0.94; }

/* ---------- About ---------- */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-48);
  align-items: start;
  padding-bottom: var(--spacing-48);
}

.about__body p { margin: 0 0 var(--spacing-30); max-width: 52ch; }

.about__portrait { width: 100%; filter: grayscale(8%); }

/* ---------- Contact ---------- */
.contact {
  padding: var(--spacing-48) 0;
}

.contact__line {
  font-family: var(--font-playfair);
  font-weight: 600;
  font-size: var(--text-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-graphite);
  margin: 0 0 var(--spacing-30);
  text-decoration: none;
  display: inline-block;
}

.contact__line:hover { text-decoration: underline; }

.contact__details {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-30);
  font-size: var(--text-body);
  color: var(--color-ink);
}

.contact__details a { text-decoration: none; }
.contact__details a:hover { text-decoration: underline; }

/* ---------- Footer ---------- */
.footer {
  padding: var(--spacing-48) 0;
  font-size: var(--text-body);
  color: var(--color-ash);
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-30);
  flex-wrap: wrap;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: var(--color-bone);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-48);
  z-index: 100;
}

.lightbox.is-open { display: flex; }

.lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  background: none;
  border: 0;
  font-family: var(--font-rubik);
  font-size: 28px;
  color: var(--color-ink);
  cursor: pointer;
  line-height: 1;
  padding: var(--spacing-14);
}

.lightbox__close { top: var(--spacing-30); right: var(--spacing-30); }
.lightbox__nav--prev { left: var(--spacing-14); top: 50%; transform: translateY(-50%); }
.lightbox__nav--next { right: var(--spacing-14); top: 50%; transform: translateY(-50%); }

/* ============================================================
   Responsive — preserve editorial feel on smaller screens
   ============================================================ */

/* Collapse the nav links behind a hamburger when they stop fitting */
@media (max-width: 860px) {
  .site-nav__menu {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 6px;
    background: none;
    border: 0;
    cursor: pointer;
  }
  .site-nav__menu span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-ink);
  }
  .site-nav__links {
    position: absolute;
    top: 52px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-14);
    padding: var(--spacing-14) var(--spacing-30) var(--spacing-30);
    background: var(--color-bone);
    border-bottom: 1px solid var(--color-ink);
    display: none;
  }
  .site-nav.is-open .site-nav__links { display: flex; }

  /* Projects dropdown sits inline inside the hamburger flyout */
  .site-nav__dropdown {
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }
  .site-nav__panel {
    position: static;
    min-width: 0;
    margin-top: 0;
    padding: 0;
    background: none;
    border: 0;
    border-left: 1px solid transparent;
    border-radius: 0;
  }
  .site-nav__dropdown.is-open .site-nav__panel {
    margin-top: var(--spacing-14);
    padding: 0 0 0 var(--spacing-14);
    border-left-color: var(--color-ink);
  }
}

/* Hero swaps to vertical (mobile) images at this width — match its ratio */
@media (max-width: 700px) {
  .hero__viewport { aspect-ratio: 4 / 5; }
}

@media (max-width: 900px) {
  :root {
    --text-display: 56px;
    --text-heading: 40px;
  }
  .category,
  .about {
    grid-template-columns: 1fr;
    gap: var(--spacing-30);
  }
  /* keep image after text on every row when stacked */
  .category:nth-child(even) .category__label { order: 0; }
  .category:nth-child(even) .category__image { order: 0; }
  .gallery { columns: 2; }
}

@media (max-width: 560px) {
  :root {
    --text-display: 40px;
    --text-heading: 30px;
  }
  .masthead { padding-top: var(--spacing-48); }
  .masthead__role { text-align: center; }
  /* Two slimmer columns on phones — more work visible per scroll */
  .gallery { columns: 2; column-gap: var(--spacing-14); }
  .gallery__item { margin-bottom: var(--spacing-14); }
  .subnav { flex-direction: column; gap: var(--spacing-14); }
}

/* Respect users who prefer less motion — no reveals, slides, or crossfades */
@media (prefers-reduced-motion: reduce) {
  @view-transition { navigation: none; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .gallery__item { opacity: 1; transform: none; }
}